Calgon comments on proposed sale
Zenon awarded US$3 million contract for UF water-treatment facility Zenon Environmental
of Burlington,
accumulation,
million
discontinued
because
1998,
the well-field
has been awarded
contract
to build what it claims is the largest
NSF-certified,
ultrafiltration
equipped water-treatment Specifically manganese, million
drinking
Seekonk,
million
waler
gallons)
to
it was
saya
trealmenr
rhat
after
which
proccs\es.
ZeeWeed
rhr
membrane
a number
district
tiltratlon
removing
of
chose
sysrern
irs
Water Disrrlcr
purchase\
and
water
wells which during
earl!-
5%
other
supplier.
are inactive.
rhe
and
barrier
bacteria
from
sysrem.
while
manganese
from
the
rhe technology
ro reuse
rhe
ranks,
will also allow rhe
“bleed”
bringing
water
from
the efficiency
the
of the
98% and 99%.
t&ll
a
Ir has two orher
One was raken off-line
1980s
because
at DaimlerChrysler
are using membrane aluminium
of
algae
Aerospace
technology
AG
to separate
ions from water, and then reusing
Large metal coating,
to rhe company,
membrane
consists
,+ltnost
entirely
xienrists
are
A cylinder
lorared
“superimposed”
This applies sufficient to
allow
rhe
is
channels.
basins is pumped water
the offer
share.
In 1999
Calgon
(Lrbon
per
announced
a
to “renew irs value ~5 a leader”, and the
changes involved are under way. Ir says “[his move by Norit
is another
company”.
avenue
ro resrrucrure
These changes arc expected
their
ro be good
in rhe long rerm for rhe entire ind&ry.
Ontario L7N 3P3, Canada. Tel: +l 905 639 6320, Fax:
15205, USA. Tel: +l 412 787 6700, Fax: +l 412 787
+l 905 639 1812.
451 I.
from
ions.
dip-ided Waste-water
from
rhe
inro
two
to the membrane
molecules
ISSN 0958-2118 /00/$20.00
to
rhe tiny pores in the material, larger aluminium
Contents
The purified and
accumulates
channel
basin
rhrough
losr
to introduce
the
end
says that
during
membrane factory
Germany.
recovered
further
permeate
a pipe.
in II are orotected
of
5
rach it is
Patents
13
The aluminium
Events Calendar
15
process
ResearchTrends
16
2001
will be sufficienr
metal panels wirh a prorecrive
on
in Bremen, using
rhr
to cover coating.
For more information, contact: DaimlerChrysler Aerospace AG, Postfach 80 11 09, D-81 663 Mbnchen, Germany. Tel: +49 89 607 0, Fax: +49 89 607 26 481.
under copyrlght
Microfittration of starch suspensionsusing a tlvbular stainless steel membrane
Mixed gas ogy usinginotgwrk membranes 9
ions
Cg,2000 Elsevier Science Ltd. All rights reserved
This journal and the mb~vidual con’rlbutinn‘ccntalned apply to thw use
1
are
separation
a large scale at rhe Airbus separation
ions
rhese
and aluminium at
News
procedure.
DaimlerChrysler planning
of aluminium and
the waste-water
irretrievably
process.
increases.
to rhe reaction
galvanisation
in rhe lower
for rhe rinsing
rhr concenrration
in rhe upper returned
water is reused
bur nor
ions.
from the
into the upper channel. pressure
through
were a
in rhe waste
downstream
proces\
basis,
would value CCC’s shares in excess of US$l2
For more information, contact: Calgon Carbon
Previously,
tank separates rhe tiny water molecules
from the relatively large aluminium
rinsing
of
iusing
to sepal-are rhis active substance
galvanisation
on a relative
in
According
Corporation, 400 Calgon Carbon Drive, Pittsburgh, PA
Meanwhile,
pollutant.
now
t-he water. Like a sici’r, the membrane rinse-water
gigantic
acquire a shiny silver
in the water ai a hazardous
company‘s
husiness.
For more information, contact: Zenon
channel
ions. After Irinsing, surplus aluminium
ions remain ‘I‘he
in thy company‘s
basin gradually
which
aluminium
panels
offer by Gilde for rhe
Environmental Inc, 845 Harrington Court, Burlington,
the considerably
the reclaimed metal product and the water. galvanisat-ion
the
NV by Gilde
BV.
the air and warer puritication
Membrane recovers aluminium and water for reuse Scientists
regarding
shares of Norir affirm.\ rhc v.Jue of companies
strategy
plant to berween
obtains
and
of Norit
Ir says t-hat the premium
were
a physical
purchase
has and
from four active wells,
rhc
neighbouring
currenrly
offer
distribution
iron
In addition, membrane
95% of its water directly
membranes
Corporation
from customers
community
Investment Management
warer source. disrricr
to treat
rhe waler supply. The Seekonk
rhe
the investment
future
parasites
rhe warer
Carbon
to enquiries
of any
Ginrdin conraminarion.
they
prevents
entering
rhis.
Calgon
potential
irs ZeeWeed
decades.
rhe
because
responded proposed
Zenon selected
US-based
to be
and
of
in bl
needed
Cryptosporidium days that
was
rains. Following
protected
per day of
other
rhe water
and
Iwo
resring
that
from
rhe
was inundated
16.3
communiry
nearly
realised
of
iron
‘I’his area has been
for
when
use
of an E. cnli ourbreak
flood water from torrential
high levels of iron and manganese
in irs groundwatcr Zenon
the
while
some
10 remove will provide
Massachusetts.
experiencing
(UF), membrane-
facility in the US.
designed rhe facility
lirreh (4.3
clean
a US$3
Ontario,
Canada
by Elsevler Science Ltd. and the iallow~-lr; terms and c,)ndil’ons
Photocopying Single photocopIes 01single articles may be made for personal use as allowed by national copyrIght laws Permission of the pubhsher ano payment 01aiee IS required tar all other photocopyIng. Including multIpIe or sysiematlc copying, copying for advertlslng or promotional purposes, resale and all forms of document dellvery Special rates aip awlable ior educational mstltullons that wish to make pholocopies for non-pro111educational classroom use